package 一六;

/**
 * Created by stevenfen on 2017/3/13.
 */
public class q1 {
    public static void main(String[] args){
        int current = 0;
        int sum = 0;
        for(int i=1;i<=100;i++){
            current+=i;
            sum+=current;
        }
        System.out.println(sum);
    }
}
